The precise control ability of CAD and vector diagram is very strong, and the data processing ability of Excel is great. By combining the two, we can draw various curves in CAD. Take the mathematical function curve as an example.

Take trigonometric function y=sinx as an example.

1, starting from 0 in column A, and taking several abscissas in steps of 0.4 (self-adjustment); Enter "=SIN(A3)" in B3 cell without quotation marks and press enter; Enter "= a3&" and "& ampB3" without quotation marks, and press enter; Fill in the other cells in column B and column C in the same way.

2. Select the coordinate value of column C and copy it with Ctrl+C; Enter "PL" command in CAD and press enter; When prompted for coordinate values, Ctrl+V paste and press Enter；; You're finished. You can draw images of other functions in the same way.

Second, the function image example

1、y=x^2

2、y=lnx

3、y=2^x

Precautions:

The symbols in the calculation formula should be entered in English.